Questions tagged [mapping]

The process of translating spatially organized knowledge of an area or place into a geographic medium. Can include the production of physical/paper maps and atlases, geocoded data, or interactive virtual maps produced using Geographic Information Systems (GIS).

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166 views

How to Interpret this set of Latitude and Longitude?

I have a house's coordinates that I know is in LA, Ventura, or Orange county, California and it says the latitude and longitude are ...
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Drawing strike lines when given strike and dip

Map 1 shows a hillside with topographic contours at 50 m intervals. At Locality A a coal seam is exposed at the surface. The strike and dip of the seam is as indicated on the map. Use this information ...
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How to determine ocean bottom depth for a data set consisting of longitude and latitude?

Given a data set which consists of pairs of longitudes and latitudes, is it possible to determine an estimate of the ocean bottom depth at that point? I can find maps of estimated sea depths online (...
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Interpreting a geological map

I have a homework question that I'm stuck on, I have attempted interpreting this map but am not sure if I have to correct interpretation. What is the youngest/oldest rock in the geological ...
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1answer
186 views

What are the best maps, if any, we have of the convection cells in the Earth's mantle?

As the title states, what maps, if any, do we have of convection currents inside the Earth's mantle, and which would you suggest to be the most detailed and accurate?
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118 views

Street and road data

Where do companies like Google and Yahoo and Mapquest get their street and road data? Is this a data source that the public has access to?
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Inconsistency between topographic survey and Google Earth

For a piece of land in Peru (Zone 18K), I was provided the following UTM coordinates (showing just one): 140800 E 8176337 N. However, when I look up the site on Google Earth, while the N coordinate is ...
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1answer
63 views

Diomede Islands

Are the Diomede Islands part of North America or Asia? I cannot find a credible, clear answer online. Only that the islands were part of the land bridge between the two continents.
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Topographic Maps

I have a question about a project I have for school. I have to make a topographic map of a made up island. I was wondering if the placement of the contour lines and the index lines are correct. Also ...
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2answers
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Standardized scale for coastline length or mapping in general?

Measuring the length of a coastline depends on the scale of the measuring tool. The smaller the scale of your tool, the longer will your measured coastline be. The reason for this is the fractal ...
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3answers
1k views

Where to find an accurate Mercator Projection world image?

I'm sorry if this doesn't fit "Earth Science" too well. No idea where else to ask this! Can anyone help me find an accurate world map in Mercator Projection? It doesn't need political borders or too ...
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1answer
207 views

How to measure stretching direction on chocolate-tablet boudins?

This has always bothered me during field mapping: A boudin with two stretching directions has the form of an M&M candy (or almond shape). What do I do to measure the two stretching directions if ...

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